/*******************************************************************************
 *     ___                  _   ____  ____
 *    / _ \ _   _  ___  ___| |_|  _ \| __ )
 *   | | | | | | |/ _ \/ __| __| | | |  _ \
 *   | |_| | |_| |  __/\__ \ |_| |_| | |_) |
 *    \__\_\\__,_|\___||___/\__|____/|____/
 *
 *  Copyright (c) 2014-2019 Appsicle
 *  Copyright (c) 2019-2024 QuestDB
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *  http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *
 ******************************************************************************/

package io.questdb.cutlass.http;

import io.questdb.cairo.SecurityContext;
import io.questdb.std.str.DirectUtf8Sequence;
import io.questdb.std.str.Utf8Sequence;
import io.questdb.std.str.Utf8s;

public final class StaticHttpAuthenticator implements HttpAuthenticator {
    private final Utf8Sequence expectedHeader;
    private final String username;

    public StaticHttpAuthenticator(String username, Utf8Sequence expectedAuthHeader) {
        this.username = username;
        this.expectedHeader = expectedAuthHeader;
    }

    @Override
    public boolean authenticate(HttpRequestHeader headers) {
        final DirectUtf8Sequence header = headers.getHeader(HttpConstants.HEADER_AUTHORIZATION);
        if (header == null) {
            return false;
        }
        return Utf8s.equals(expectedHeader, header);
    }

    @Override
    public byte getAuthType() {
        return SecurityContext.AUTH_TYPE_CREDENTIALS;
    }

    @Override
    public CharSequence getPrincipal() {
        return username;
    }
}
